The 5 nitrogenous bases used in DNA and RNA

Image source: By Michał Sobkowski CC BY 2.0, via Wikimedia Commons

DNA is held together by adenine-thymine pairs, and guanine-cytosine pairs through hydrogen bonding. Based on their hydrogen bonding capabilities, would a DNA strand composed solely of adenine-thymine pairs be stronger or weaker than a DNA strand composed solely of guanine cytosine pairs.

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